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Hello there.

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Welcome to this video on Javascript datatypes.

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Javascript uses several data types to create applications programs in this field.

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I am going to go through some of the common data types use by javascript.

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There are others but I'm just going to cover some of the common ones.

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All right.

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These are somewhat the common data types used in javascript.

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First one is this string string refers to any data that is regarded as text so a collection of text

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is known as a string.

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And in javascript and in some programming languages you have to close your strings or text in quotes

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as I've done here with John.

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So anything that is the text that you use in Javascript you must close out with quotes in javascript.

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You can use high double quotes or single quotes but you can't mix them.

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You can for example start with a double quote and then end it with a single quote just won't work.

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You have to maintain the type of quotes you use right so that's what string do.

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Then you've got the number data number refers to numeric data.

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For example why 7 7 saw anything that numerical is referred to as in No data type.

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This also includes decimals like three point eight.

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Next you've got baldly in bullion is any data that returns true or fours value.

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For example is 2 greater than 1 that would return true and so on.

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So any data you need to determine if it is true or false is regarded as a boolean.

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Next we are on to the three and a really is a piece of data or estorra Each label that stores multiple

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values as one.

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For example you have a label called fruits and inside that fruit you will store apples grapes berries

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and so on.

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And you identify and agree with the square brackets so you can see the square brackets in red.

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You use that to identify that you are dealing with an array with a raise.

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The values are indexed from 0 for example.

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The first value is zero and then 1 and 2.

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So if you want to call this a reference this apple you do fruit's a square braggers and then 0.

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That would mean you were referring to the Apple Apple inside the fruits.

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So this is how you will create a very and they are used to store multiple data as one value.

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Next is the law.

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The law basically means the value does not exist doesn't exist for example you are filling out an online

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form as something that requires a piece of data that you haven't got the javascript application would

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treat that as a NOL value.

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For example if you have an e-mail address column and you no longer know the email of that person or

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email address doesn't work you can insert in log value in that field.

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So that's what normal means.

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You can also empty it value by setting it or not.

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So this sign here is used to set something so you can have an e-mail address that no longer functions.

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It just said that to not means is empty.

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So this is a brief description of the sum of the on Javascript data types.

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In this video I went through some of the mine data types used in Javascript javascript uses various

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data types to create applications and perform various functions.

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These are just some of the common ones.

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There are others but this will do for a start.

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I hope the new has made sense if it hasn't.

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Please feel free to let me know and be I'll be more than happy to explain or help in whatever way I

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can.

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Thank you so much for your help for your time.

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Take care.

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Bye for now.